US6083059A - Structure of a terminal - Google Patents

Structure of a terminal Download PDF

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Publication number
US6083059A
US6083059A US09/321,962 US32196299A US6083059A US 6083059 A US6083059 A US 6083059A US 32196299 A US32196299 A US 32196299A US 6083059 A US6083059 A US 6083059A
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US
United States
Prior art keywords
terminal
fixing portion
contact
horseshoe
contact portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US09/321,962
Inventor
Chi-Te Kuan
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Ant Precision Industry Co Ltd
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Ant Precision Industry Co Ltd
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Filing date
Publication date
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Priority to US09/321,962 priority Critical patent/US6083059A/en
Assigned to ANT PRECISION INDUSTRY CO., LTD. reassignment ANT PRECISION INDUSTRY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KUAN, CHI-TE
Application granted granted Critical
Publication of US6083059A publication Critical patent/US6083059A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2428—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using meander springs

Definitions

  • the present invention relates to an improved structure of a terminal, and especially to a terminal structure having a contact portion with a smooth contact surface for reducing noise as well as costs of production and molding.
  • FIG. 1 shows a conventional terminal 10 which is punched from a substrate.
  • the pin 11 is bent with a proper angle and further bent longitudinally to retain a tenon 12 in a vertical state.
  • the upper end of the tenon 12 is bent downwards with a proper length and then bent reversely so as to form an elastic portion 13.
  • the elastic portion 13 serves to allow the connector 40 (as shown in FIG. 4) to be assembled to a device (such as a mobile phone).
  • the terminal 10 may be reduced inwards for providing an elastic force so that the contact surface 14 may tightly resist against the contact surface (not shown) of the device.
  • the structure of the terminal is different from that of FIG. 1.
  • the terminal is formed by punching.
  • the terminal 20 is formed with a fixing portion 21 on which a plurality of tenons 22 are punched for fixing the connector within a housing.
  • the lower end thereof is installed with a pin 23.
  • the pin 23 is vertical to the fixing portion 21.
  • the upper end of the fixing portion 21 is punched to form a raster spring 24.
  • the upper end of the raster spring 24 is punched with a contact portion 25.
  • the contact portion 25 is punched, it has a contact surface which is fairly rough when the connector is connected to a device, the terminal is easily displaced due to vibration and some noise is induced. The noise will affect the quality of communication between the connected devices. Therefore, although such a design is helpful in production, it dramatically degrades the quality of the connector 40. Accordingly, the prior art terminals 10 and 20 are not ideal. There is a strong demand for an improved terminal that can provide good connection and is easy to manufacture.
  • the present invention has been made in accordance with the demand of a high quality and durable terminal.
  • the novel terminal structure of this invention has a smooth contact area on its contact portion.
  • the smooth contact area reduces the noise that may be generated due to improper contact caused by vibration.
  • the terminal also has a flat shape raster spring which can be manufactured with high yield.
  • the primary object of the present invention is to provide an improved structure of a terminal formed on a substrate by punching, wherein the terminal has a fixing portion having a plurality of tenons punched thereon for being fixed in the housing of a connector.
  • the lower end of the terminal has a pin which serves as a welding point.
  • the pin portion is formed by punching the substrate and it is bent so as to be orthogonal to the surface of the fixing portion that has been made with a flat shape.
  • a raster spring is formed above the fixing portion and a contact portion is formed above the raster spring.
  • the raster spring has an upper protruded portion connected to the contact portion that comprises a smooth surface for providing high quality and low noise electrical contact.
  • FIG. 1 shows a terminal structure in the prior art.
  • FIG. 2 shows another terminal structure of the prior art.
  • FIG. 3 is a perspective view of the terminal according to the present invention.
  • FIG. 4 shows the terminal and the connector housing of the present invention.
  • the terminal 30 is formed on a substrate by punching.
  • the terminal 30 has a fixing portion, and a plurality of tenons 32 punched thereon for being fixed in the housing of a connector 40 (as shown in FIG. 4).
  • the lower end thereof is a pin 33 which serves as a welding point.
  • the pin portion is bent so as to be orthogonal to the flat surface of the fixing portion 31.
  • the upper end of the fixing portion 31 is punched with a raster spring 34 above which a contact portion 35 is punched.
  • the contact portion 35 is initially an elongated flat body extended upward above the raster spring 34. As shown in FIG.
  • the raster spring 34 of the terminal is formed with a flat shape. It can be manufactured easily without deformation.
  • the terminal has the advantage of low failure rate in manufacturing as the terminal 20 shown in FIG. 2.
  • the connector 40 is installed with a plurality of slots 41. A plurality of terminals 30 are assembled to the slots 41.
  • the terminal 30 When the connector 40 is assembled to a device (such as a mobile phone, etc), the terminal 30 will be extruded so that the raster spring 34 will be compressed. An elastic force is induced so that the smooth surface 36 of the contact portion 35 will resist against the device. Therefore, the problem that the contact portion 25 of the terminal 20 shown in FIG. 2 is easily displaced due to vibration is resolved.
  • the present invention simplifies the structure of a mold and thus the cost of a mold is reduced.

Abstract

An improved structure of a terminal includes a horseshoe-shaped contact portion with a smooth contact surface. The terminal is formed on a substrate by punching. It has a fixing portion on which a plurality of tenons are formed so as to be fixed in the housing of a connector. The lower end of the terminal is a pin portion bent to be orthogonal to the flat surface of the fixing portion. A raster spring with an upper protruded part is formed above the fixing portion. A horseshoe-shaped contact portion is connected to the upper protruded part of the raster spring. The contact portion has a smooth surface for providing high quality and low noise electrical contact.

Description

FIELD OF THE INVENTION
The present invention relates to an improved structure of a terminal, and especially to a terminal structure having a contact portion with a smooth contact surface for reducing noise as well as costs of production and molding.
BACKGROUND OF THE INVENTION
Connectors serve to electrically connect two devices. A plurality of terminals are usually installed in a connector. FIG. 1 shows a conventional terminal 10 which is punched from a substrate. The pin 11 is bent with a proper angle and further bent longitudinally to retain a tenon 12 in a vertical state. The upper end of the tenon 12 is bent downwards with a proper length and then bent reversely so as to form an elastic portion 13. Next, it is further bent to form a circular contact surface 14. The elastic portion 13 serves to allow the connector 40 (as shown in FIG. 4) to be assembled to a device (such as a mobile phone). The terminal 10 may be reduced inwards for providing an elastic force so that the contact surface 14 may tightly resist against the contact surface (not shown) of the device. Then the contact surface 14 is plated and curled to form a material strip for performing the automatic assembly of the terminal and the connector 40. When such a terminal 10 is wound as a material strip, the structure is easily deformed. Thus, the failure rate in production is very high. As a result, this terminal 10 is not used by most manufactures, while an alternative type of terminal shown in FIG. 2 is adopted.
As illustrated in FIG. 2, the structure of the terminal is different from that of FIG. 1. In the alternative design, the terminal is formed by punching. The terminal 20 is formed with a fixing portion 21 on which a plurality of tenons 22 are punched for fixing the connector within a housing. The lower end thereof is installed with a pin 23. After punching, the pin 23 is vertical to the fixing portion 21. The upper end of the fixing portion 21 is punched to form a raster spring 24. The upper end of the raster spring 24 is punched with a contact portion 25. When this terminal 20 is wound to form a material strip, the failure rate is greatly decreased and the production cost is reduced. However, since the contact portion 25 is punched, it has a contact surface which is fairly rough when the connector is connected to a device, the terminal is easily displaced due to vibration and some noise is induced. The noise will affect the quality of communication between the connected devices. Therefore, although such a design is helpful in production, it dramatically degrades the quality of the connector 40. Accordingly, the prior art terminals 10 and 20 are not ideal. There is a strong demand for an improved terminal that can provide good connection and is easy to manufacture.
SUMMARY OF THE INVENTION
The present invention has been made in accordance with the demand of a high quality and durable terminal. The novel terminal structure of this invention has a smooth contact area on its contact portion. The smooth contact area reduces the noise that may be generated due to improper contact caused by vibration. The terminal also has a flat shape raster spring which can be manufactured with high yield.
Therefore, the primary object of the present invention is to provide an improved structure of a terminal formed on a substrate by punching, wherein the terminal has a fixing portion having a plurality of tenons punched thereon for being fixed in the housing of a connector. The lower end of the terminal has a pin which serves as a welding point.
The pin portion is formed by punching the substrate and it is bent so as to be orthogonal to the surface of the fixing portion that has been made with a flat shape. A raster spring is formed above the fixing portion and a contact portion is formed above the raster spring. The raster spring has an upper protruded portion connected to the contact portion that comprises a smooth surface for providing high quality and low noise electrical contact.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a terminal structure in the prior art.
FIG. 2 shows another terminal structure of the prior art.
FIG. 3 is a perspective view of the terminal according to the present invention.
FIG. 4 shows the terminal and the connector housing of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
As shown in FIG. 3, the perspective view of the terminal of the present invention is illustrated. The terminal 30 is formed on a substrate by punching. The terminal 30 has a fixing portion, and a plurality of tenons 32 punched thereon for being fixed in the housing of a connector 40 (as shown in FIG. 4). The lower end thereof is a pin 33 which serves as a welding point. After punching, the pin portion is bent so as to be orthogonal to the flat surface of the fixing portion 31. The upper end of the fixing portion 31 is punched with a raster spring 34 above which a contact portion 35 is punched. After punching, the contact portion 35 is initially an elongated flat body extended upward above the raster spring 34. As shown in FIG. 3, there is a protruded portion on the upper part of the raster spring 34. The lower end of the elongated flat body is connected to the protruded portion from one side. The lower end is then bent 90 degrees with respect to the protruded portion at the connected area in such a way that the flat body becomes orthogonal to the flat surface of the raster spring. The upper end of the flat body is then bent downward towards the protruded portion to form a horseshoe-shaped contact portion 35. A smooth surface 36 on the outer surface of the contact portion 35 serves as a contact point for high quality electrical connection.
According to the invention, the raster spring 34 of the terminal is formed with a flat shape. It can be manufactured easily without deformation. Thus the terminal has the advantage of low failure rate in manufacturing as the terminal 20 shown in FIG. 2. Moreover, as shown in FIG. 4, the connector 40 is installed with a plurality of slots 41. A plurality of terminals 30 are assembled to the slots 41. When the connector 40 is assembled to a device (such as a mobile phone, etc), the terminal 30 will be extruded so that the raster spring 34 will be compressed. An elastic force is induced so that the smooth surface 36 of the contact portion 35 will resist against the device. Therefore, the problem that the contact portion 25 of the terminal 20 shown in FIG. 2 is easily displaced due to vibration is resolved. Moreover, the present invention simplifies the structure of a mold and thus the cost of a mold is reduced.
Although the present invention has been described with reference to the preferred embodiments, it will be understood that the invention is not limited to the details described thereof. Various substitutions and modifications have been suggested in the foregoing description, and others will occur to those of ordinary skill in the art. Therefore, all such substitutions and modifications are intended to be embraced within the scope of the invention as defined in the appended claims.

Claims (1)

What is claimed is:
1. An improved structure of a terminal, comprising:
a fixing portion having a flat surface, a plurality of tenons formed thereon, an upper end and a lower end;
a pin portion connected to the lower end of said fixing portion, said pin portion being orthogonal to the flat surface of said fixing portion;
a raster spring connected to the upper end of said fixing portion, said raster spring having a flat surface and a protruded upper portion; and
a horseshoe-shaped contact portion having a first end connected to a first side of the protruded upper portion of said raster spring, and a second end positioned on a second side of the protruded upper portion, said protruded upper portion protruding between the two ends of said horseshoe-shaped contact portion;
wherein said horseshoe-shaped portion has a smooth outer surface for electrical contact.
US09/321,962 1999-05-28 1999-05-28 Structure of a terminal Expired - Fee Related US6083059A (en)

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Cited By (50)

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WO2002010675A1 (en) * 2000-07-31 2002-02-07 Lecroy Corporation Electrical test probe flexible spring tip
US6358097B1 (en) * 1999-07-23 2002-03-19 Fci Americas Technology, Inc. Contact element, process for making the same and connector comprising the same
US6402567B1 (en) * 2001-05-25 2002-06-11 Hon Hai Precision Ind. Co., Ltd. Electrical connector having improved spring contact member
WO2002096689A1 (en) * 2001-05-29 2002-12-05 Tyco Electronics Amp Gmbh Attachment device for the sun visor of a motor vehicle
US6491527B1 (en) * 2001-05-17 2002-12-10 Ericsson Inc. Dual compression connector
US6491968B1 (en) 1998-12-02 2002-12-10 Formfactor, Inc. Methods for making spring interconnect structures
US6572386B1 (en) * 2002-02-28 2003-06-03 Hon Hai Precision Ind. Co., Ltd. Socket having low wiping terminals
US6672875B1 (en) * 1998-12-02 2004-01-06 Formfactor, Inc. Spring interconnect structures
US20040121627A1 (en) * 2002-12-23 2004-06-24 Formfactor, Inc. Microelectronic contact structure
US6783405B1 (en) * 2003-11-28 2004-08-31 Chuan Yi Precision Industry Co., Ltd. Terminal for electric connector for communication apparatus
US20050026510A1 (en) * 2003-07-31 2005-02-03 J.S.T. Mfg. Co., Ltd. Electric connector
US20050070170A1 (en) * 2003-09-30 2005-03-31 Hongbo Zhang Connector contact having wiping function
EP1542318A1 (en) * 2003-12-11 2005-06-15 Lumberg Connect GmbH & Co. KG Electrical plug with resilient contacts
US20050142417A1 (en) * 2001-04-20 2005-06-30 Honda Giken Kogyo Kabushiki Kaisha Terminal member to be connected for cell voltage-measuring use
US20050231220A1 (en) * 2004-04-14 2005-10-20 Hung Teng S Terminal of IC test fixture
US20060148328A1 (en) * 2003-01-07 2006-07-06 Herve Le Gallic Plug connector equipped with compression contact terminals
US20060246754A1 (en) * 2005-04-28 2006-11-02 Hon Hai Precision Ind. Co., Ltd. Electrical connector with improved contacts
US20070093145A1 (en) * 2005-10-26 2007-04-26 Shih-Fu Wei Elastic contact
US20070105407A1 (en) * 2005-11-04 2007-05-10 Advanced Connectek Inc. Board to board connector
US7270558B1 (en) * 2006-03-16 2007-09-18 Cheng Uei Precision Industry Co., Ltd. Electrical connector assembly
US20080254651A1 (en) * 1998-12-02 2008-10-16 Formfactor, Inc. Spring interconnect structures
US20080286992A1 (en) * 2007-05-15 2008-11-20 Fci Americas Technology, Inc. Battery contact
US20080286991A1 (en) * 2007-05-15 2008-11-20 Fci Americas Technology, Inc. Battery contact
WO2009121876A1 (en) * 2008-04-03 2009-10-08 Abb Research Ltd Movable electrical conductor
US20090298307A1 (en) * 2005-11-22 2009-12-03 Nhk Spring Co., Ltd. Conductive Contact Unit and Conductive Contact
US20100012345A1 (en) * 2008-07-16 2010-01-21 Gm Global Technology Operations, Inc. Flexible electric bus bar in a small space
US7671613B1 (en) 2006-01-06 2010-03-02 Lecroy Corporation Probing blade conductive connector for use with an electrical test probe
US20100184334A1 (en) * 2009-01-20 2010-07-22 Hon Hai Precision Industry Co., Ltd. Contact having increased resilience for use with electrical connector
US20100227514A1 (en) * 2006-02-17 2010-09-09 Nhk Spring Co., Ltd. Conductive Contact and Conductive Contact Unit
US20110034074A1 (en) * 2009-08-07 2011-02-10 Mai Yuan-Hi Battery connector
US20110104959A1 (en) * 2009-11-02 2011-05-05 Smk Corporation Press-contact pogo pin connector
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WO2011128075A1 (en) * 2010-04-14 2011-10-20 Pfisterer Kontaktsysteme Gmbh Electrical plug-in connector element and plug-in connector part comprising a plurality of plug-in connector elements
USD666975S1 (en) 2010-09-07 2012-09-11 Fci Electrical connector
USD668619S1 (en) 2011-06-01 2012-10-09 Fci Electrical terminals for electrical connector
USD668615S1 (en) 2011-06-01 2012-10-09 Fci Electrical connector
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US8672704B2 (en) 2010-09-07 2014-03-18 Fci Electrical connector having crimp-mounted electrical terminals
US8702443B2 (en) 2011-06-01 2014-04-22 Fci Americas Technology Llc Electrical terminal having crimp members with different number of crimp teeth
US8926359B2 (en) 2010-09-07 2015-01-06 Fci Electrical module having extra electrical terminals
US9022666B2 (en) 2011-11-16 2015-05-05 Tyco Electronics Corporation Optical communication connectors with modules movable in a mating direction
US20150123689A1 (en) * 2010-09-07 2015-05-07 Johnstech International Corporation Electrically Conductive Pins For Microcircuit Tester
US9140724B1 (en) 2006-01-06 2015-09-22 Lecroy Corporation Compensating resistance probing tip optimized adapters for use with specific electrical test probes
US20160093963A1 (en) * 2013-04-18 2016-03-31 Fci Americas Technology Llc Electrical connector system
US9404940B1 (en) 2006-01-06 2016-08-02 Teledyne Lecroy, Inc. Compensating probing tip optimized adapters for use with specific electrical test probes
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US9653827B2 (en) * 2015-09-04 2017-05-16 Cheng Uei Precision Industry Co., Ltd. Battery connector with large current carrying capacity
US20170179630A1 (en) * 2015-12-21 2017-06-22 Foxconn Interconnect Technology Limited Power connector having a dual-beam contact
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US7553165B2 (en) 1998-12-02 2009-06-30 Formfactor, Inc. Spring interconnect structures
US20090263986A1 (en) * 1998-12-02 2009-10-22 Formfactor, Inc. Spring interconnect structures
US7841863B2 (en) 1998-12-02 2010-11-30 Formfactor, Inc. Spring interconnect structures
US20080254651A1 (en) * 1998-12-02 2008-10-16 Formfactor, Inc. Spring interconnect structures
US20040142583A1 (en) * 1998-12-02 2004-07-22 Formfactor, Inc. Spring interconnect structures
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EP1542318A1 (en) * 2003-12-11 2005-06-15 Lumberg Connect GmbH & Co. KG Electrical plug with resilient contacts
US20050231220A1 (en) * 2004-04-14 2005-10-20 Hung Teng S Terminal of IC test fixture
US7322834B2 (en) * 2005-04-28 2008-01-29 Hon Hai Precision Ind. Co., Ltd. Electrical connector with improved contacts
US20060246754A1 (en) * 2005-04-28 2006-11-02 Hon Hai Precision Ind. Co., Ltd. Electrical connector with improved contacts
US20070093145A1 (en) * 2005-10-26 2007-04-26 Shih-Fu Wei Elastic contact
US20070105407A1 (en) * 2005-11-04 2007-05-10 Advanced Connectek Inc. Board to board connector
US7335068B2 (en) * 2005-11-04 2008-02-26 Advanced Connectek Inc. Board to board connector
US7866986B2 (en) * 2005-11-22 2011-01-11 Nhk Spring Co., Ltd. Conductive contact unit and conductive contact
US20090298307A1 (en) * 2005-11-22 2009-12-03 Nhk Spring Co., Ltd. Conductive Contact Unit and Conductive Contact
US7671613B1 (en) 2006-01-06 2010-03-02 Lecroy Corporation Probing blade conductive connector for use with an electrical test probe
US9404940B1 (en) 2006-01-06 2016-08-02 Teledyne Lecroy, Inc. Compensating probing tip optimized adapters for use with specific electrical test probes
US8098078B1 (en) 2006-01-06 2012-01-17 Lecroy Corporation Probing blade with conductive connector for use with an electrical test probe
US9140724B1 (en) 2006-01-06 2015-09-22 Lecroy Corporation Compensating resistance probing tip optimized adapters for use with specific electrical test probes
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US20100227514A1 (en) * 2006-02-17 2010-09-09 Nhk Spring Co., Ltd. Conductive Contact and Conductive Contact Unit
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